openssl smime -sign -in message.txt -text -out mail.msg \
-signer mycert.pem
-Create and opaque signed message
+Create and opaque signed message:
openssl smime -sign -in message.txt -text -out mail.msg -nodetach \
-signer mycert.pem
-----BEGIN PKCS7-----
-----END PKCS7-----
-and using the command,
+and using the command:
openssl smime -verify -inform PEM -in signature.pem -content content.txt
-alternatively you can base64 decode the signature and use
+Alternatively you can base64 decode the signature and use:
openssl smime -verify -inform DER -in signature.der -content content.txt